Earth-boring machine



(NoMbdeL) r I J, E. DAVIS.

EARTH BORING MACHINE.

' No. 333,931. Patented Jan. 5,1886..

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NrTED STATES PATENT OFFICE.

JAMES E. DAVIS, OF PALMYRA, ASSIGNOR OF ONE-HALF TO THOMAS C.

' SNYDER, OF CANTON, OHIO.

EARTH-BORING MACHINE.

SPECIFICATION forming part of Letters Patent No. 333,931, dated January 5, 1886.

Application filed September 7, 1885. Serial No. 176,332.

To all whom it may concern:

Be it known that 1, JAMES E. DAVIS, a citizen of the United States, residing at Palmyra, in the county of Portage and State of Ohio,

5 have invented certain new and useful Improvements in Earth-Boring Machines; and 1 do hereby declare that the following is afull, clear. and exact description of the same, reference being hadto the annexed drawings, makro ing a part of this specification, and to the let ters and figures of reference marked thereon,

in which Figure 1 is a top view. Fig. 2 is a top view showing the auger-propelling wheel and its Fig. 3 is a side elevation. Fig. 4 is a longitudinal section.

lhe present invention has relation to earth boring machines designed and calculated to bore through the earth to the rock prepara- 2o tory to operating a rock-drilling machine; and its nature consists in the different parts and combination of parts hereinafter described, and particularly pointed out in the claim.

Similar letters of reference indicate corresponding parts in all the figures of the drawings.

In the accompanying drawings, A repre sents the frame of the machine proper, and, 0 as shown, it consists of two longitudinal pieces or bars and cross -bars or bolts properly framed together in any desired and well-known manner. This frame A is firmly secured to the ground by means of suitable stakes properly driven into the ground or in any other manner, so that said frame A will be firmly held in proper position, and is so arranged that the working end of said frame will be located directly over the place where the hole is to be bored.

To the cross pieces or bars a are securely attached the bearings B, as shown in the drawings, said bearings being for the purpose of holding in proper position the shaft 0, to

5 the outer end of which is attached the pulley D, over which passes the belt I), which communicates motion to the machine proper. To the opposite or inner end of the shaft 0 is loosely attached the pinion E,which meshes 5c in the auger'propelling wheel F, as shown in the drawings.

(No model.)

To the frame A is securely attached the annular plate G by means of the supports H. Said supports may be cast or formed with the annular plate G, or they may be made separate and attached in any well-known manner, said supports being securely held to the frame A by means of suitable clampingbolts. In the drawings two supports are shown, but more may be used, if desired.

On the top or upper side of the annular plate G is placed the auger-propelling wheel F. As shown in the drawings this auger-propelling wheel is provided with the flange I, (best seen in Fig. 4,)which is for the purpose of holding said wheel F in proper position. The top or upper side of the auger-propelling wheel F is provided with the notches or recesses J, which are located, substantially as shown in Fig. 1, and are for the purpose of 0 receiving and holding the arms K, said arms being substantially of the form shown in Fig. 1.

To the arms K are attached the blocks or supports L, which are for the purpose of receiving and properly holding the anti-friction 7 rollers L, said rollers being so arranged that the auger-shank can pass between them, as shown in the drawings, said rollers being for the purpose of lessening the friction of the angershank, and at the same time preventing the said auger-shank from binding as the auger proper is being elevated or lowered.

When it is desired to communicate motion to the auger M, the clutch N is thrown into contact with the pinion E by means of the operating-lever N, said operatiuglever N being pivotally attached to one of the cross pieces or bars a, as shown in the drawings; or, if preferred, said operating lever may be attachedin any other suitable manner.

For the purpose of holding the auger-propelling wheel F down on the pinion E, the wheel 0 is located and attached substantially as shown in the drawings.

It will be seen that by my peculiar arrangement I am enabled to remove the arms K, together with their different parts, at any time desired, and also to instantly properly attach said arms K to the auger-propelling wheel F.

I am aware that to provide an annular 10c wheel and pinion is old, also that a removable piece for engaging the auger-shaft with the J, of the anti-friction rollers L, and the augershank, substantially as and for the purpose specified.

In testimony that I claim the above I have 15 hereunto subscribed my name in the'presence of two witnesses.

JAMES E. DAVIS.

Witnesses:

E. A. KAUFMAN, FRED W. Bonn. 

